Brett Butler (born April 10, 1985) is an American NASCAR driver who most recently ran in the Camping World Truck Series. He is the younger brother of driver Ken Butler III, and the son of Aaron's, Inc. president Ken Butler.

Butler graduated from Parkview High School where he was a star wrestler. At the age of 15, he started his racing career by running go-karts along with his brother Ken. In 2003 and 2004, he ran in the Aaron's Pro Challenge series, accumulating 22 top-10s and two poles. For 2005, Butler ran part-time in the Dodge Weekly Racing Series at Hickory Motor Speedway. He earned three top-10s and finished 12th in points.

Around this time, Butler signed with Michael Waltrip Racing as part of their driver development program. In 2006, he began running in the Hooters USAR Pro Cup Series. He ran the entire season in their Southern Division and finished 21st in points with 1 top-10. He finished 2nd in both Rookie of the Year and Most Popular Driver Standings. In 2007, he ran selected Pro Cup races and also made his ARCA series debut by running 2 races with Aaron's sponsorship. In 2008, Brett returned to running full-time in Pro Cup, this time in their Northern Division.

In 2009, Butler made his debut in the Truck Series at Martinsville Speedway in March, driving the No. 47 Chevrolet for Fast Track Racing Enterprises. He started in the 36th position and finished 26th. He would run 3 more races that season with a best finish of 20th at Martinsville in October in a No. 99 Chevrolet owned by Dwayne Tatman.

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